Wave scattering by metamaterial wedges and interfaces

Details Wave scattering by metamaterial wedges and interfaces Wave scattering by metamaterial wedges and interfaces

2005-08-29

arxiv.org/abs/physics/0508209v1

Int. J. Numer. Model.: Electron. Netw. Device Fields 19, 105-117 (2006).

Physics

Optics

12 pages, 9 figures

Scientific paper

10.1002/jnm.602

We outline specific features of numerical simulations of metamaterial wedges and interfaces. We study the effect of different positioning of a grid in the Yee method, which is necessary to obtain consistent convergence in modeling of interfaces with metamaterials characterized by negative dielectric permittivity and negative magnetic permeability. We demonstrate however that, in the framework of the continuous-medium approximation, wave scattering on the wedge may result in a resonant excitation of surface waves with infinitely large spatial frequencies, leading to non-convergence of the simulation results that depend on the discretization step.

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